In this configuration, it is important that screws start from both components in order to preserve rigidity in each direction.
T-Slot is so cool!
Might be a good source too.
T-bolts are available in 1 1-1/2 2 2-1/2 3" and 3-1/2" lengths.For us, the space was about 1/2 and we found that two post-it pads was about right. .You can control them from a Arduino or PC, or from a servo controller.That also works, but the board provides PID for velocity and not position, so it wasn't as precise for this type of application as we'd hoped. .Encoders DC Motors We also tried using motors with encoders and a RoboClaw driver board. .See the pictures for the bracket spacing.You can try this project out live on the Internet! .Amazon and Ebay, so it was easy to obtain. .
As with the rest of the project, the T-Slot made it super easy. .
We are using the auto scaling of the input - the training mode no don lotto boyz lyrics to make the range of movement map to the full 0-4095 range. .(12) flanged bearings 1/4" inside diameter, and 1/2" outside diameter (just needs to match the holes in the aluminum channel) m Kit776 or similar (40/10 of them, or M 57155K323 -.70 each).Via a Windows program and the USB connector, and they have several input methods for control (R/C signals, serial and feedback (we used the linear voltage - potentiometer). .Our aluminum extrusions are among the most useful components for making jigs and fixtures.One t-nut conists of a regular screw (usually a hex socket head a square nut, and a distinctive slot geometry in the stock.Channel Aluminum: This is to make the brackets for the bearings. .Since the motors have a 6mm shaft, it's pretty close. .

That was from McMaster too, and came in a huge shipping tube.